Table 1 Results from the postal survey.
From: Eradication of scrapie with selective breeding: are we nearly there?
| Â | GSF sample | SF sample |
|---|---|---|
| Â | (n = 168)* | (n = 689) |
Ewes per farm | Â | Â |
   Mean | 31.7 | 31.1 |
   St. dev | 56.7 | 48.6 |
Presence of breeds** | Â | Â |
   Texelaar | 56.6% | 55.8% |
   Swifter | 29.8% | 34.0% |
   Zwartbles | 16.0% | 12.5% |
   Bleu de Maine | 8.9% | 3.3% |
   Blauwe Texelaar | 7.1% | 3.9% |
   Minor breeds | 30.4% | 38.3% |
No. breeds per farm | Â | Â |
   1 | 53.4% | 49.6% |
   2 | 34.5% | 39.5% |
   3 | 10.1% | 8.7% |
   > 3 | 2.0% | 2.3% |
ARR/ARR selection ram * | Â | Â |
   All breeds | 84.9% | 68.3% |
   Texelaar | 89.9% | 71.2% |
   Swifter | 91.5% | 76.4% |
   Zwartbles | 81.5% | 58.1% |
   Bleu de Maine | 85.7% | 76.5% |
   Blauwe Texelaar | 92.3% | 85.0% |
   Minor breeds | 72.9% | 55.9% |